3.2002.2016: Housing, Government: United States. Maryland. Perryville: Governmental Agencies of House Construction. U.S. War Department, Industrial Service Section of the Ordnance Department, Housing Branch: Perryville, Maryland; U.S. Ammonium Nitrate Plant, Atlas Powder Company, Agent. Remodeled bunkhouses and portable bungalow; 9 of these latter were built.